Inventory (Details) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Inventory
Raw Materials	$ 4,303,000	$ 4,431,000
Work In Progress	155,000	144,000
Finished Goods	618,000	644,000
Reserve for Obsolescence	(2,000,000)	(1,183,000)
Total	$ 3,076,000	$ 4,036,000